republicans willing to do the same? >> woodruff: other democrats voiced concern about giving ground on social security and medicare. arizona congressman raul grijalva co-chairs the house progressive caucus. >> if social security, medicare and medicaid are on the table, at least that's the discussion, the deal that we've read, then we cannot support that deal. we understand it could be restructuring of social security or medicare, but cuts to beneficiaries, cuts to benefits, raising the retirement age, all of that is off the table. >> woodruff: those positions will have to be reconciled if congress is to craft the debt ceiling bargain that the president envisions before the august 2nd deadline. otherwise, the government risks default on the nation's financial obligations. for more, we turn to naftali bendavid, congressional correspondent for the "wall street journal." and andy kohut, president of the pew research center.